Home / 31,914.40-47,929.20-23,159.20

Finding the Fourth Proportional to 31,914.40, 47,929.20 and 23,159.20

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Solution

The fourth proportional to 31,914.40, 47,929.20 and 23,159.20 is: 34,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.40 : 47,929.20 = 23,159.20 : x
  2. Step 2: Convert to fraction form
    31,914.40/47,929.20 = 23,159.20/x
  3. Step 3: Cross multiply
    31,914.40x = 47,929.20 × 23,159.20
  4. Step 4: Simplify right side
    31,914.40x = 1,110,001,928.64
  5. Step 5: Solve for x
    x = 1,110,001,928.64/31,914.40
  6. Step 6: Final answer
    x = 34,780.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.